The gauge on our extractor is 22, as a comparison, in the past Mann Lake's was 26 (NOTE: the HIGHER the gauge number, the THINNER the metal).
Maxant makes an excellent product. Our extractor is also of high quality and is mated to a high-grade American Baldor motor. I have used our 18-frame heavily for the last 5 years and it runs like a champ every time.
Please note, as of today, we are backordered on 18-Frame extractors for about 2 weeks. First in, first out on pre-orders. Planning on extracting in July? You might want to get one on order now.
Nonetheless, I think you'll be happy with either choice.